EP3474818B1 - Verfahren um den zahnstein zu entfernen - Google Patents
Verfahren um den zahnstein zu entfernen Download PDFInfo
- Publication number
- EP3474818B1 EP3474818B1 EP17734617.8A EP17734617A EP3474818B1 EP 3474818 B1 EP3474818 B1 EP 3474818B1 EP 17734617 A EP17734617 A EP 17734617A EP 3474818 B1 EP3474818 B1 EP 3474818B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- calculus
- tooth
- hydrogen peroxide
- kit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/22—Peroxides; Oxygen; Ozone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
- A61K8/66—Enzymes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
Definitions
- Dental calculus may lead to periodontal diseases including gingivitis and periodontitis.
- the existing methods of removing dental calculus rely upon mechanical means such as scaling by trained dental professionals. Such existing removal procedures can be painful and uncomfortable for patients.
- the existing removal procedures can put a significant physical burden on the hygienist, often times leading to muscular and repetitive movement ailments (e.g., carpal tunnel syndrome).
- a significant amount of time during the dental prophylaxis procedure is allocated to calculus removal.
- Some aspects of the present disclosure provide a method of removing calculus from a tooth.
- the method can include providing a component A, wherein the component A comprises a hydrogen peroxide or a precursor thereto; providing a component B, wherein the component B comprises a catalase; applying the component A and the component B to the tooth, thereby generating oxygen ; and removing at least a part of the calculus from the tooth; wherein component A and component B are each independently a liquid or a gel; and wherein at least one of the component A and the component B has a viscosity of less than 26 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- kits of parts for removing calculus from a tooth can include a component A comprising a hydrogen peroxide or a precursor thereto; and a component B comprising a catalase; wherein component A and component B are each independently a liquid or a gel; and wherein at least one of component A and component B has a viscosity of less than 26 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Dental calculus (also referred to as dental tartar) is defined as mineralized dental biofilm filled with crystals of various calcium phosphates or dental plaque that has partially or completely calcified. It may be caused by the continual accumulation of minerals from fluids in the oral environment on plaque on the teeth. Dental calculus is a common oral condition afflicting humans and a variety of animal species and the presence of dental calculus may lead to periodontal diseases. The existing methods of removing dental calculus, which rely upon mechanical means such as scaling, are time consuming and laborious for dental professionals, and can be a painful and unpleasant experience for patients.
- the present disclosure generally relates to methods and kits of removing calculus from a tooth.
- the method can include providing a component A comprising a hydrogen peroxide or a hydrogen peroxide precursor; providing a component B comprising a catalase; applying the component A and the component B to the tooth, thereby generating oxygen to the tooth, thereby generating oxygen; and removing at least a part of the calculus from the tooth.
- component A and component B are each independently a liquid or a gel; and at least one of the component A and the component B has a viscosity of less than 26 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- catalase and hydrogen peroxide gel viscosities that eases calculus removal when both gels are applied concurrently, as discussed in further detail below and illustrated by the Examples.
- the removal of dental calculus is challenging due to the generally strong adhesion of the calculus to the tooth surfaces, and the similar inorganic composition of the calculus and tooth tissues.
- the method of the present disclosure can, for example provide an easier removal of dental calculus.
- the method of the present disclosure can reduce the time of calculus removal. For example, after the application of the component A and component B, removing the calculus is easier and quicker.
- the method of the present disclosure can enable improved procedural efficiency, helping to reduce the amount of time dedicated to the dental prophylaxis procedure of calculus removal. This will increase the patient comfort during the calculus removal process, create opportunities for more patients, additional time for other procedures and increased rest periods for the dental professional, reducing their muscular and repetitive movement ailments, such as carpal tunnel syndrome).
- the component A can include hydrogen peroxide.
- the hydrogen peroxide can be generated by a peroxide generating enzyme in combination with the corresponding substrate, e.g., glucose oxidase and Superoxide Dismutase (SOD).
- glucose oxidase can catalyze the oxidation of glucose to hydrogen peroxide.
- the hydrogen peroxide may be in a form of a hydrogen peroxide adduct, such as carbamide peroxide, percarbonate salts or acids and polyvinylpyrrolidone (PVP) peroxide and combinations thereof.
- Suitable percarbonate salts or acids can include, but are not limited to percarbonic acid, sodium percarbonate, potassium percarbonate, magnesium percarbonate, calcium percarbonate, zinc percarbonate.
- the component A can include a hydrogen peroxide precursor, such as perborate salts or acids, metal peroxides, organic peroxide, inorganic peroxyacids or salts and combinations thereof.
- Suitable perborate salts or acids can include, but are not limited to perboric acid, sodium perborate, potassium perborate, magnesium perborate, calcium perborate, and zinc perborate.
- Suitable metal peroxides can include, but are not limited to calcium peroxide and magnesium peroxide.
- Suitable organic peroxides can include, but are not limited to peroxycarboxylic acids, such as peracetic acid or salts thereof, permalonic acid or salts thereof, pertartaric acid or salts thereof and percitric acid or salts thereof.
- the organic peroxide can be a peracetate salt or acid.
- Suitable inorganic peroxyacids or salts can include, but are not limited to peroxymonosulfuric acid, peroxyphosphoric acid and a potassium salt of a sulfuric peroxyacid.
- the component A can include at least about 0.003 M hydrogen peroxide. In some of these embodiments, the component A can include from about 0.03 M to about 12 M hydrogen peroxide. In some of these embodiments, the component A can include from about 0.1 M to about 3 M hydrogen peroxide. In some embodiments, the component A can include hydrogen peroxide in an amount of about 0.01 wt %, about 0.1 wt %, about 1 wt %, about 5 wt %, about 10 wt %, about 30 wt %, about 35 wt %, or a range between and including any two of these values.
- the component A can comprise a hydrogen peroxide precursor or hydrogen peroxide adduct capable of producing a similar concentration of hydrogen peroxide, for example, at least about 0.003 M hydrogen peroxide.
- a 15 wt % carbamide peroxide solution can produce a solution which includes about 5 wt % hydrogen peroxide.
- the component B can include a peroxidase. In some embodiments, the component B can include a catalase. Catalases can be found in a wide variety of eukaryotic and prokaryotic organisms including, but not limited to Agrobacterium tumefaciens, Aliivibrio salmonicida , Anopheles gambiae, Aspergillus nidulans , and Aspergillus niger. Suitable catalases that can be used in the present disclosure are well known in the art and can include those described in International Publication No. WO2012/072777 .
- suitable catalases can include catalase derived/isolated from bovine liver, Aspergillus niger and Micrococcus lysodeikticus.
- catalase can be in an unisolated form, such as a part of or whole eukaryotic and prokaryotic organism.
- Catalases can catalyze the disproportionation of two molecules of hydrogen peroxide into two molecules water and one molecule oxygen.
- the component B can include greater than about 3 units/mL of catalase. In some embodiments, the component B can include greater than about 17 units/mL of catalase. As used herein, one unit catalase will decompose 1.0 ⁇ mole of hydrogen peroxide per minute at pH 7.0 at 25 °C, while the hydrogen peroxide concentration falls from 10.3 to 9.2 mM, measured by the rate of decrease of A 240 .
- the component B can include catalase in an amount of about 30 units/mL, about 300 units/mL, about 3,000 units/mL, about 5,500 units/mL, about 30,000 units/mL, about 300,000 units/mL, or a range between and including any two of these values, for example from about 30 units/mL to about 3,000 units/mL.
- component B can include from about 1,000 units/mL to about 20,000 units/mL catalase.
- the concentration of catalase inside the oral cavity increases by at least about 5 units/mL saliva, about 10 units/mL saliva, about 20 units/mL saliva, about 30 units/mL saliva, about 100 units/mL saliva, about 300 units/mL saliva, about 3,000 units/mL saliva, about 5,500 units/mL saliva about 30,000 units/mL saliva, about 30,000 units/mL saliva or a range between and including any two of these values, above the natural concentration of catalase present inside the oral cavity prior to application of the component B.
- FIG. 1 One embodiment of the present method of the invention is illustrated in Figure 1 .
- a component A comprising a hydrogen peroxide or a hydrogen precursor, as described above, is provided.
- a component B comprising a catalase, as described above, is also provided.
- both component A and component B are applied concurrently to a tooth to generate oxygen within the calculus of the tooth, as described above.
- component A or component B may be applied at about the same time, jointly, or even applied simultaneously to the tooth.
- a user observes the oxygen bubbles generated along the surface of the calculus (i.e., such bubbles are observable to the naked human eye).
- a dental hand scaler is commercially available as a universal (i.e., Columbia) curette from either OSUNG MND CO., LTD. (Korea) or Hu-Friedy (Netherlands).
- a dental ultrasonic scaler is commercially available as SIROSONIC ultrasonic scaler, C-series from Sirona Dental (US).
- component A and component B may form a mixture on the tooth as they are being concurrently applied.
- component A and component B may be applied to the tooth surface by a double barrel syringe, where one nozzle opening delivers component A and the other nozzle opening delivers component B to the surface of the tooth.
- the nozzle openings could be arranged such that component A and component B are applied on the same general area of the calculus, and are then necessarily mixed and intermingled to form a mixture and produce the desired oxygen generation within the calculus.
- the nozzle openings could be arranged such that at least certain portions of component A and component B overlap and are then necessarily mixed and intermingled to form a mixture and produce the desired oxygen generation within the calculus.
- component A and component B may be mixed with the nozzle of the syringe or by other instruments such as a scaler, to form the mixture of component A and component B on the tooth surface, and thereby produce the desired oxygen generation within the calculus.
- a user observes the oxygen bubbles generated along the surface of the calculus.
- the calculus is thereafter removed from the tooth by a mechanical means or process, hand or ultrasonic scaling, as described above.
- the mixture of component A and component B may be formed just prior to application of such mixture to the surface of the tooth to generate the desired production of oxygen within the calculus on the tooth.
- component A and component B may be applied to the tooth surface by a double barrel syringe having a static mixer. Each barrel delivers a component and the static mixer mixes component A and component B just prior to exiting the nozzle of the static mixer, which delivers the mixture to the surface of the tooth. While the component A and component B are mixing within the static mixer, it can begin to produce the desired oxygen generation and is then thereafter applied to the calculus on the tooth.
- a user observes the oxygen bubbles generated along the surface of the calculus.
- a suitable dual barrel static mixer syringe is disclosed in PCT Published Patent Application 2015/073246 entitled “A Cartridge, A Piston and A Syringe Comprising the Cartridge and the Piston," which is hereby incorporated by reference.
- Another suitable dual barrel static mixer syringe is commercially available from Sulzer Mixpac (USA).
- the mixture of component A and component B are applied concurrently for at least 5-10 seconds on an individual tooth before the calculus is removed by mechanical methods.
- the mixture of component A and the component B is applied concurrently to the tooth for a time period less than about 1 hour prior to the removing step.
- the removing step occurs within 24 hours after the applying step.
- the applying step and the removing step are all completed in less than 24 hours.
- the applying step and the removing step are completed in less than 1 hour, ideally less than 20-35 minutes for this process to be completed for the typical dental patient.
- the length of time to complete the method of the present invention can and will vary based any number of factors, including, but not limited to, the amount, area, tenacity, depth of calculus on the patient's teeth , and the total number and location (e.g. posterior vs. anterior) of teeth being treated. It is expected that the method will be performed by a dental professional, such as dental hygienist or dentist, and the method would be customized for the individual patient.
- component A and component B may be applied concurrently to a patient's individual tooth having calculus and thereafter the calculus is removed from that specific tooth.
- component A and component B may be mixed in a static mixer and then applied to the entire arch of the patient's teeth.
- the component A or component B is applied concurrently for a period less than about 1 hour, less than about 30 minutes, less than about 10 minutes, less than about 5 minutes, less than about 2 minutes, or less than about 1 minute. In some of these embodiments, the component A or component B is concurrently applied for about 10 minutes, about 5 minutes, about 2 minutes, about 1 minute, about 30 seconds, about 15 seconds or a range between and including any two of these values. In some embodiments, both the component A and the component B are each applied concurrently for a period less than about 1 hour, less than about 30 minutes, less than about 10 minutes, less than about 5 minutes, less than about 2 minutes, or less than about 1 minute.
- component A includes a hydrogen peroxide adduct
- the hydrogen peroxide dissociates from the adduct in the environment within the oral cavity to produce hydrogen peroxide.
- hydrogen peroxide in the presence of peroxidase e.g., catalase can cause release of oxygen, thereby loosening the calculus from the tooth.
- the generated oxygen can, for example weaken the adhesion between the calculus and tooth surface so that the calculus can be removed easily after relatively short exposure times to the mixture of Component A and Component B.
- the generated oxygen can soften and/or loosen the calculus so that the removal of the calculus, for example, by hand scaling is much easier.
- the calculus can be removed in a shorter time or with a less force.
- the catalase concentration typically present in human saliva or oral cavity is not sufficient to provide these effects.
- At least a part of the calculus can be removed from the tooth by any suitable mechanical means, e.g., scaling (such as using a dental scaler), brushing, swabbing, wiping, ultrasonic, air polishing or jetted water.
- the part of the calculus may be removed by mechanical means other than tooth brushing, for example by a dental scaler.
- removing step occurs within 1 day, 12 hours, 6 hours, 3 hours, 1 hour, 30 minutes, 10 minutes, 5 minutes, 2 minutes, 1 minute, 30 seconds, or 15 seconds after the applying steps.
- removing step lasts for a period less than about 10 minutes, less than about 5 minutes, less than about 2 minutes, or less than about 1 minute. In other embodiments, removing step lasts about 10 minutes, about 5 minutes, about 2 minutes, about 1 minute, about 30 seconds, or a range between and including any two of these values.
- the method of the present disclosure can, for example, provide an easier and/or quicker removal of the calculus.
- the applying steps and removing step are all completed in less than about 1 day, about 12 hours, about 6 hours, about 3 hours, about 1 hour, about 30 minutes, about 10 minutes, about 5 minutes, about 2 minutes, or about 1 minute.
- the method of the present invention is completed in the course of a single dental visit.
- Either component A or component B can be (independently) in any form liquid or gel form suitable for oral cavity delivery, such as in the form of aqueous solutions (e.g., a rinse), a paste, or a gel.
- aqueous solutions e.g., a rinse
- a paste e.g., a paste
- gel e.g., a gel
- component A and component B can be concurrently applied both as rinses.
- component A can be concurrently applied as a gel and component B can be applied as a rinse.
- component A and component B can be concurrently applied both as gels.
- At least component A or the component B has a viscosity of less than 26 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- the component A and the component B each have a viscosity of less than 26 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- the component A and the component B each have a viscosity of less than 16 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- at least one of the component A and the component B has a viscosity of greater than 2 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- the component A and the component B each have a viscosity of greater than 2 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- the viscosities of components A and B are similar, e.g. the viscosities can differ by less than 5, 4, 3 or 2 Pa ⁇ s. This may be desirable where components A and B are delivered as a mixture using a static mixer to ensure the effective missing of the components.
- methods of the present disclosure include relatively short exposure times of the combination of component A and component B , such that no noticeable bleaching or tooth whitening is observed by the naked eye when the method is completed, e.g., in a single instance, and in some cases, over multiple instances.
- additives can be applied to the tooth surface. In some of these embodiments, additives can be applied with the component A and/or the component B.
- the additives used in the method can include, but are not limited to, antiseptics and preservatives, antibiotics, flavoring materials, surfactants, abrasives, thickeners and binders, propellants, carriers, tartar control agents, calcium sequestrants, fluoride salts, and dyes.
- Suitable antiseptics and preservatives can include, but are not limited to, chlorhexidine and salts thereof, polyhexamethylene biguanide, octenidine, quaternary ammonium salts and polymers thereof, organic acids, chelating agents for example a calcium chelating agent (e.g., Ethylenediaminetetraacetic acid (EDTA)), essential oils, and parabens.
- chelating agents for example a calcium chelating agent (e.g., Ethylenediaminetetraacetic acid (EDTA)), essential oils, and parabens.
- Examples of antiseptics and preservatives can include those described in U.S. Patent No. 8,647,608 .
- Non-limiting examples of antibiotics can include penicillin, tetracycline, minocycline, and the like. Examples of antibiotics can also include those described in U.S. Patent No 6,685,921 .
- flavoring materials can include artificial sweeteners, plant oils, and synthetic flavors.
- abrasives can include silica particles, synthetic inorganic particles, and synthetic or plant derived organic particles.
- Suitable surfactants can include those described in U.S. Publication No. 2006/0051385 . Examples of such surfactants include cationic surfactants, zwitterionic surfactants, non-ionic surfactants and anionic surfactants.
- thickeners can include glycerol, silica, polysaccharides (including cellulose-based polymers and derivatives), plant gums (e.g. guar and xanthan gum), petroleum derived materials such as petrolatum, polyethylene glycols, polyvinyl pyrrolidone and co-polymers thereof, polylactic acids, long chain fatty acid alcohols, acrylate polymers, and polyacrylic acids gelatin, or combinations thereof.
- a suitable polyacrylic acid is a cross-linked polyacrylic acid commercially available under the trade designation CARBOPOL (e.g. Carbopol 971) from Lubrizol Corporations located in Wickliffe, OH).
- the thickeners may include one or more inorganic or a natural or synthetic thickeners or gelling agents. Any orally acceptable thickener can be used. Suitable thickeners or gelling agents include amorphous silica (e.g., as available from Huber Corporation under the trade designation ZEODENT 165), fumed silica, precipitated silica, colloidal silica, natural and synthetic gums and colloids, poloxamers, carbomers, also known as carboxyvinyl polymers, carrageenan, Irish moss, iota-carrageenan, cellulosic polymers such as hydroxyethylcellulose, carboxymethylcellulose (carmellose, cellulose gum) and salts thereof, e.g., carmellose sodium, natural gums such as karaya, xanthan, gum Arabic, gum tragacanth, polyvinylpyrrolidone, agar, colloidal magnesium aluminum silicate, and combinations thereof.
- amorphous silica e.g
- the thickener or gelling agent can be independently dissolved, dispersed, suspended, or emulsified in component A, component B, or in both. In some embodiments, the thickener or gelling agent can be dissolved, dispersed, suspended, or emulsified in the carrier.
- Suitable carriers can include those described in U.S. Patent No. 8,647,608 .
- Carriers can include any alcohols suitable for use in a subject's oral cavity, including ethanol and isopropanol and glycerol.
- At least one of the component A and the component B includes a carrier.
- the carrier if present, can include a liquid, a gel, or both.
- the carrier can be a liquid at about room temperature.
- the carrier can be a liquid at about the temperature of the oral cavity of a human, i.e., at about 37 °C. It is understood that a plurality of carriers can be used.
- liquid carriers include, but are not limited to, water, glycerin, propylene glycol, polyalkylene glycols (e.g., polyethylene glycol, polypropylene glycol, etc.), polyglycerol, and combinations thereof.
- suitable carriers include those described in U.S. Pat. Nos. 6,669,929 (Boyd et al. ), 6,379,654 (Gebreselassie et al. ), and 4,894,220 (Nabi et al. ), each of which is incorporated herein by reference in its entirety.
- Suitable dyes include those described in U.S. Patent No. 8,647,608 .
- tartar control agents include those described in U.S. Patent No 6,685,921 .
- Anti-tartar agents known for use in dental care products can include, but are not limited to phosphate.
- Phosphates can include pyrophosphates, polyphosphates, polyphosphonates and mixtures thereof.
- Pyrophosphate salts can include the dialkali metal pyrophosphate salts, tetra-alkali metal pyrophosphate salts and mixtures thereof.
- fluoride salts can include those described in U.S. Patent No 6,685,921 , U.S. Pat. No. 3,535,421 and U.S. Pat. No. 3,678,154 .
- kits of removing calculus from a tooth of the present disclosure can include a component A comprising a hydrogen peroxide or a precursor thereto and a component B comprising a catalase.
- the component A of the kit is applied to the tooth before or after the component B of the kit is applied to the tooth.
- Aspergillus niger catalase enzyme with an activity of 967,500 units (U) per gram (g) was obtained from American Laboratories (Omaha, NE). One unit of this enzyme decomposes 1.0 ⁇ mol of hydrogen peroxide (H 2 O 2 ) per minute at pH 7.0 at 25 °C. As used herein, one unit catalase will decompose 1.0 ⁇ mole of hydrogen peroxide per minute at pH 7.0 at 25 °C, while the hydrogen peroxide concentration falls from 10.3 to 9.2 mM, measured by the rate of decrease of A 240 .
- Carbopol 971P NF a crosslinked polyacrylic acid polymer, was obtained from Lubrizol Corporation (Wickliffe, OH).
- H 2 O 2 was obtained in the form of a 30 wt.% aqueous solution from Avantor Performance Materials (Center Valley, PA). Diluted aqueous hydrogen peroxide solutions were prepared using deionized water. The molarity of the aqueous hydrogen peroxide solutions at room temperature ( ⁇ 23 °C) was calculated from the weight percent and approximate density of the solutions (densities were calculated at 25 °C using Equation (3) in Easton, M.F., Mitchell, A.G., Wynne-Jones, W.F.K., "The Behaviour of Mixtures of Hydrogen Peroxide and Water. Part I. Determination of the Densities of Mixtures of Hydrogen Peroxide and Water", Trans. Faraday Soc., 48, 796 (1952 )).
- Hydrogen peroxide containing gels with varying viscosities were prepared by diluting concentrated (30 wt. %) aqueous hydrogen peroxide with deionized water, adding sufficient Carbopol 971P NF (Lubrizol Corporation, Wickliffe, OH, USA) to arrive at a hydrogen peroxide containing gel with the desired amount of Carbopol 971P NF (i.e., gels containing 3 wt.
- a low viscosity solution containing 3 wt.% hydrogen peroxide was prepared by dilution of 30 wt.% hydrogen peroxide with deionized water.
- Viscosities were measured using a flat, 20 mm stainless steel plate on an ARG2 rheometer (TA Instruments, New Castle, DE) at a shear rate of about 1/s using a 1 mm gap at 25 °C. Viscosity measurements for the components are reported in Pa ⁇ s.
- Extracted human teeth containing multiple regions with calculus deposits (available from various suppliers such as enretec GmbH, Velten, Germany) were obtained and stored in 0.5-1.0 wt. % aqueous chloramine-T solution prior to use. To prepare the extracted teeth for calculus removal testing, the teeth were rinsed with deionized water. Hand scaling of calculus deposits as described in the following examples was performed using a universal (i.e., Columbia) curette commercially available from either OSUNG MND CO., LTD. (Korea) or Hu-Friedy (Netherlands).
- Calculus-covered regions on extracted human teeth were treated with either water (control) or test formulations.
- the effectiveness of the treatment was determined by comparing the ease of calculus removal by hand scaling half of each calculus-covered region after application of water onto calculus versus ease of hand scaling after application of the formulation on the second half of each calculus-covered region on the same tooth.
- the formulation was scored as efficacious (+) if the formulation improved the ease of removing the calculus with a hand scaler.
- the formulation was scored as not efficacious (-) if there was no observation of improved ease of removal of calculus.
- Component A Hydrogen peroxide containing gel with 3 wt.% hydrogen peroxide and 0.5 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 2.05 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Component B Catalase containing gel with 5,000 U A. niger catalase per gram of gel (5,500 U/mL of gel), 35 wt.% glycerol, and 0.5 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 3.14 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Component A Hydrogen peroxide containing gel with 3 wt.% hydrogen peroxide and 1.0 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 11.53 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Component B Catalase containing gel with 5,000 U A. niger catalase per gram of gel (5,500 U/mL of gel), 35 wt.% glycerol, and 1.0 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 15.24 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Component A 3 wt.% hydrogen peroxide solution with a viscosity similar to water, (approximately 0.001 Pa ⁇ s).
- Component B Catalase containing phosphate buffered saline solution with 3,000 U A. niger catalase per gram of solution (3,300 U/mL of solution), with a viscosity similar to water.
- the components were applied to the calculus-covered tooth surface as a mixture in a sufficient amount to cover the calculus deposit, by extruding the components through the static mixer using hand pressure on the plunger of the dual barrel syringe. After application of the mixture, the operator waited 5 to 20 seconds and then began scaling. In two out of four calculus-covered regions on at total of three teeth, an improvement in the ease of removal of calculus by the operator was observed.
- Component A Hydrogen peroxide containing gel with 3 wt.% hydrogen peroxide and 0.5 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 2.05 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Component B Dry A. niger catalase powder.
- Component A Hydrogen peroxide containing gel with 3 wt.% hydrogen peroxide and 2.0 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 26.22 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Component B Catalase containing gel with 5,000 U A. niger catalase per gram of gel (5,500 U/mL of gel), 35 wt.% glycerol, and 2.0 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 39.53 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Component A Hydrogen peroxide containing gel with 3 wt.% hydrogen peroxide and 0.5 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 2.05 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Component B Catalase containing gel with 5,000 U A. niger catalase per gram of gel (5,500 U/mL of gel), 35 wt.% glycerol, and 0.5 wt.% Carbopol 971P NF, pH adjusted to 7.4, with a viscosity of 3.14 Pa ⁇ s at a shear rate of 1/s at 25 °C.
- Experiment 1 is repeated, except that Component A and Component B are applied concurrently, but separately and without mixing, to a calculus-covered region of a single tooth.
- the application of Component A and Component B to the calculus-covered region may be performed by loading the components in to a dual barrel syringe (1:1 volume ratio) equipped with a tip that includes a septum which prevents the components from mixing in the syringe tip.
- Component A and Component B (in the form of neighboring gel droplets on the calculus-covered region of the tooth) are mixed for several seconds at the calculus-covered region, using the syringe tip. After mixing, the operator waits 5 to 20 seconds and then begins scaling.
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Claims (14)
- Kit von Teilen zur Verwendung in einem Verfahren zum Entfernen von Zahnstein von einem Zahn, wobei das Kit umfasst:einen Bestandteil A, der ein Wasserstoffperoxid oder einen Vorläufer davon umfasst; undeinen Bestandteil B, der eine Katalysatorschicht umfasst;wobei Bestandteil A und Bestandteil B jeweils unabhängig eine Flüssigkeit oder ein Gel sind; undwobei mindestens einer von Bestandteil A und Bestandteil B eine Viskosität von weniger als 26 Pa·s bei einer Scherrate von 1/s bei 25 °C aufweist; und wobei das Verfahren umfasst:Bereitstellen von Bestandteil A;Bereitstellen von Bestandteil B;Aufbringen von Bestandteil A und von Bestandteil B auf den Zahn, dadurch Erzeugen von Sauerstoff; undEntfernen mindestens eines Teils des Zahnsteins vom Zahn.
- Kit von Teilen nach Anspruch 1, wobei Bestandteil A und Bestandteil B in dem Aufbringungsschritt gleichzeitig auf den Zahn aufgebracht werden.
- Kit von Teilen nach einem der Ansprüche 1 bis 2, wobei Bestandteil A und Bestandteil B in dem Aufbringungsschritt eine Mischung auf dem Zahn bilden.
- Kit von Teilen nach einem der Ansprüche 1-2, wobei Bestandteil A und Bestandteil B vor dem Aufbringungsschritt gemischt werden, um eine Mischung zu bilden, und wobei die Mischung in dem Aufbringungsschritt auf den Zahn aufgebracht wird.
- Kit von Teilen nach einem der Ansprüche 1-4, wobei die Mischung aus Bestandteil A und Bestandteil B in dem Aufbringungsschritt für einen Zeitraum von weniger als etwa 1 Stunde vor dem Entfernungsschritt aufgebracht wird.
- Kit von Teilen nach einem der Ansprüche 1-5, wobei Bestandteil A und Bestandteil B in dem Aufbringungsschritt auf den Zahn für eine Zeitdauer von weniger als 1 Stunde vor dem Entfernungsschritt aufgebracht werden.
- Kit von Teilen nach einem der Ansprüche 1-6, wobei Bestandteil A von etwa 0,03 M bis etwa 12 M Wasserstoffperoxid umfasst.
- Kit von Teilen nach einem der Ansprüche 1-7, wobei Bestandteil B mehr als etwa 3 Einheiten/ml Katalase umfasst.
- Kit von Teilen nach einem der Ansprüche 1-8, wobei Bestandteil A und Bestandteil B jeweils eine Viskosität von weniger als 26 Pa·s bei einer Scherrate von 1/s bei 25 °C aufweisen.
- Kit von Teilen nach einem der Ansprüche 1-9, wobei das Wasserstoffperoxid ein Wasserstoffperoxidaddukt ist.
- Kit von Teilen nach einem der Ansprüche 1-10, wobei das Wasserstoffperoxidaddukt ausgewählt ist aus der Gruppe, bestehend aus Carbamidperoxid, Percarbonatsalzen oder -säuren, Polyvinylpyrrolidon-(PVP)-peroxid und Kombinationen davon.
- Kit von Teilen nach einem der Ansprüche 1-11, wobei der Wasserstoffperoxidvorläufer ausgewählt ist aus der Gruppe, bestehend aus Perboratsalzen oder -säuren, Metallperoxiden, organischem Peroxid, anorganischen Peroxysäuren oder -salzen und Kombinationen davon.
- Kit von Teilen nach einem der Ansprüche 1-12, wobei das Wasserstoffperoxid durch ein Peroxid erzeugendes Enzym erzeugt wird.
- Kit von Teilen nach einem der Ansprüche 1-13, wobei der Entfernungsschritt das Entfernen durch mechanische Mittel umfasst.
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US201662353407P | 2016-06-22 | 2016-06-22 | |
PCT/US2017/038471 WO2017223161A1 (en) | 2016-06-22 | 2017-06-21 | Methods and kits of removing calculus |
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EP3474818A1 EP3474818A1 (de) | 2019-05-01 |
EP3474818B1 true EP3474818B1 (de) | 2020-05-13 |
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EP (1) | EP3474818B1 (de) |
JP (1) | JP7292037B2 (de) |
CN (1) | CN109414392B (de) |
BR (1) | BR112018076904B1 (de) |
RU (1) | RU2719462C1 (de) |
WO (1) | WO2017223161A1 (de) |
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EP3233036B1 (de) | 2014-12-15 | 2023-01-25 | 3M Innovative Properties Company | Kits zur entfernung von zahnstein |
RU2719462C1 (ru) | 2016-06-22 | 2020-04-17 | 3М Инновейтив Пропертиз Компани | Способы и наборы для удаления зубного камня |
CN109843251A (zh) | 2016-10-20 | 2019-06-04 | 3M创新有限公司 | 用于使用非酶过氧化氢分解催化剂移除结石的方法和试剂盒 |
EP4419062A1 (de) | 2021-10-20 | 2024-08-28 | Solventum Intellectual Properties Company | Zusammensetzung und verfahren zur behandlung einer erkrankung der mundhöhle eines säugetiers |
US20230149145A1 (en) * | 2021-11-16 | 2023-05-18 | Essential Dental Systems, Inc. | Dual gel colorimetric effervescent dental calculus softening/tooth whitening/ anti-inflammatory cleaning composition with instantaneous mixing via double barrel syringe delivery |
CN115770208A (zh) * | 2022-12-15 | 2023-03-10 | 中国人民解放军空军军医大学 | 一种牙膏组合物及其制备方法、使用方法和应用 |
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- 2017-06-21 BR BR112018076904-5A patent/BR112018076904B1/pt not_active IP Right Cessation
- 2017-06-21 US US16/305,107 patent/US11596590B2/en active Active
- 2017-06-21 EP EP17734617.8A patent/EP3474818B1/de active Active
- 2017-06-21 JP JP2018565010A patent/JP7292037B2/ja active Active
- 2017-06-21 CN CN201780038733.6A patent/CN109414392B/zh active Active
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WO2017223161A1 (en) | 2017-12-28 |
CN109414392B (zh) | 2022-07-08 |
RU2719462C1 (ru) | 2020-04-17 |
JP7292037B2 (ja) | 2023-06-16 |
US20200315942A1 (en) | 2020-10-08 |
JP2019520350A (ja) | 2019-07-18 |
BR112018076904B1 (pt) | 2022-02-08 |
CN109414392A (zh) | 2019-03-01 |
BR112018076904A2 (pt) | 2019-04-02 |
EP3474818A1 (de) | 2019-05-01 |
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